12hr backyard ultramarathons

Night trail loops under the brightest full moon, marked courses of 3.3 or 4.17 miles, 8-hour lap challenge and 12-hour Last Runner Standing format

Classic backyard ultra from Bubblan in Toredal: mostly asphalt and gravel, long climbs, waterfront sections, descents, and a flat run-in.

Scenic Wasatch Front trails, varied terrain, and genuinely challenging courses in a small-scale, community-centered setting

4.167-mile loop each hour for 12 hours on trails and dirt roads in scenic Skagit County, backyard format emphasizing consistent endurance and pacing

Looped 4.167-mile course on multi-lap route around Sparks Marina, including Veteran's Plaza and Peninsula, with hourly start format

Smooth wooded trails by day, traffic-free bike path at night; gentle elevation, flowing surfaces, and a fixed-end backyard format over 50 or 100 miles